So I’m working on a program which will make it easier for me to organize my image files. However I have run into a problem, I would like to zip the thumbnails the program generates when it detects a new image. But this is more difficult than I thought in java, since it’s not possible to add a new file to an existing zip file, instead the whole zip file must be recreated. So I’m wondering, is there any other way to bundle the thumbnails into a single file?